Hi, What is DTMF and telephone event ? Many thanks -- Khoa Pham HCMC University of Science Faculty of Information Technology -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130417/bafb1e4c/attachment-0001.html>
